iPadOS 9.3 (build 13E237) is an official Apple over-the-air update for the iPad 4 (Global), released on 2016-03-28T16:51:20Z. The update package is 1.02 GB. This is a delta (partial) update that requires 8.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 42f21d6652e6c294108191522325c157a4debacd.zip.